Veneers are a technology that bonds a layer of ceramic restoration with a thickness of 0.2mm-0.5mm to the teeth without or less grinding. It can cover the color of teeth and restore the beauty of teeth. It has the advantages of little damage to teeth and beautiful, natural and stable color. It is mainly suitable for abnormal tooth color such as enamel hypoplasia, tetracycline-stained teeth, fluorosis, deformed teeth, too small teeth, too large tooth gaps, interproximal caries and incisal defects. It is generally used for the aesthetic restoration of anterior teeth.